Specifications

SiBE04-624 Instruction
System Configuration 133
28
 FAULT DIAGNOSIS BY REMOTE CONTROLLER
In the ARC447A1, the temperature display sections on the main unit indicate corresponding codes.
1. When the CANCEL button is held down for 5 seconds, a “ ” indication flashes on the temper-
ature display section.
2. Press the CANCEL button repeatedly until a continuous beep is produced.
•
The code indication changes as shown below, and notifies with a long beep.
NOTE
CODE MEANING
SYSTEM
00 NORMAL
UA INDOOR-OUTDOOR UNIT COMBINATION FAULT
U0 REFRIGERANT SHORTAGE
U2 DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
U4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)
U7 CIRCUIT BOARD TRANSMISSION FAULT
INDOOR UNIT
AH STREAMER FAULT
A1 INDOOR PCB DEFECTIVENESS
A5 HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
A6 FAN MOTOR FAULT
CC HUMIDITY SENSOR FAULT
C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C7 FRONT PANEL OPEN/CLOSE FAULT
C9 FAULTY SUCTION AIR TEMPERATURE SENSOR
UA HOSE LENGTH NOT SET
OUTDOOR UNIT
EA COOLING-HEATING SWITCHING FAULT
E1 CIRCUIT BOARD FAULT
E5 OL STARTED
E6 FAULTY COMPRESSOR START UP
E7 DC FAN MOTOR FAULT
E8 OVERCURRENT INPUT
FA EJECTION PRESSURE FAULT
F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL
F6 HIGH PRESSURE CONTROL (IN COOLING)
H0 SENSOR FAULT
H1 DAMPER FAULT
H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR
H8 CT ABNORMALITY
H9 FAULTY SUCTION AIR TEMPERATURE SENSOR
J3 FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
J6 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
L3 ELECTRICAL PARTS HEAT FAULT
L4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
L5 OUTPUT OVERCURRENT
P4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR
HUMIDIFY UNIT
PA HEATER LINE BROKEN FAULT
PH HUMIDIFYING FAN OUTLET THERMISTOR FAULT, HEATER TEMPERATURE FAULT
P9 HUMIDIFYING FAN LOCK
1) A short beep and two consecutive beeps indicate non-corresponding codes.
2) To cancel the code display, hold the CANCEL button down for 5 seconds. The code display also cancel itself if the button is not pressed for 1
minute.
CANCEL button
It cancels the timer setting.
3P177300-1